This paper presents a software architecture for desktop virtual reality systems.
文中描述了一个桌面VR系统的软件体系结构。
The time delay problem in head-mounted display (HMD) based virtual reality systems is researched.
研究了基于头盔显示器（HMD）的虚拟现实系统中的时间延迟问题。
In some virtual reality systems, such as simulated human body model, computer games and stunts in movies, there is a need of hair modeling.
在现代的一些虚拟现实系统中，如模拟人体模型、游戏以及电影特技中需要对头发的真实感进行建模。虚拟现实的关键技术之一是对显示对象进行建模。
In the virtual reality interactive system of the force-feedback or touch-feedback, fast calculating exact contacted position among virtual objects is precondition of these collision detection systems.
在触觉、力觉交互的虚拟现实系统中，快速计算虚拟物体之间精确接触位置是触觉、力觉交互碰撞检测系统的前提。
Electromagnetic tracking systems are widely used in Virtual Reality and computer simulation system to measure the attitude and position of the users hand or head to perform Human-Computer Interaction.
虚拟现实系统和计算机仿真系统中广泛采用电磁跟踪系统测量用户的头部或手部的位置和姿态来实现人机交互。
Simulation training system is an important application of virtual reality technology in fields of professional technique teaching and training, and collision detection is needed in many systems of it.
仿真培训系统是虚拟现实技术在专业技术教学和训练中的重要应用，碰撞检测是许多仿真培训系统实现过程中不可缺少的一部分。
This paper briefly introduces the technologies related to the systems development: document standardization, CMM / CMMI, virtual reality technology.
本论文简要介绍了与系统开发相关的技术：文档规范化，CMM/CMMI，虚拟现实技术。
In addition to the major technologies and main systems, some important research and development organizations for virtual reality are also introduced.
除关键技术和重要系统之外，还介绍了一些主要的研究开发机构。
The basic conception of Virtual Reality is described in this paper. Based on Virtual RealityTechnogies the Men-Machine Harmonized Simulation Systems will be created in future.
本文提出了灵境技术的基本概念，并论述了它是建立人机和谐仿真系统的关键技术。
The basic conception of Virtual Reality is described in this paper. Based on Virtual RealityTechnogies the Men-Machine Harmonized Simulation Systems will be created in future.
本文提出了灵境技术的基本概念，并论述了它是建立人机和谐仿真系统的关键技术。
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